Smart Previewer by Adzymic

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Smart Previewer by Adzymic",
  "description": "Smart Previewer allows users to preview display ad on live environment by replacing existing ad slot with creative tag.",
  "version": "1.0",
  "browser_action": {
    "default_title": "Smart Previewer by Adzymic",
    "default_icon": "adz.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "css": [
      "css/inspect.css"
    ],
    "persistent": true
  },
  "permissions": [
    "activeTab",
    "storage"
  ]
}